We're dividing 91433797 by 126 
The aim is to understand the frequency of 126 in 91433797.

Advancing to step 1:
126 can be fit into 9 0 times, resulting in a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Fetch the next digit (1) from the dividend, attach it to 9 and continue: 91 / 126

Moving on to step 2:
126 goes into 91 0 times with a remainder of 91.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 91 and we're left with 91.
Include the next digit (4) from the dividend after 91, then repeat: 914 / 126

Going ahead to step 3:
126 goes into 914 7 times with a remainder of 32.
Use 7 as the next digit of our solution. 
Result so far: 7.0
The remainder is 32 after subtracting 882 from 914.
Bring next digit (3) of the dividend behind the 32 and repeat the process: 323 / 126

Going ahead to step 4:
When dividing 323 by 126, we get 2 with a remainder of 71.
Put 2 as the next digit of the answer. 
Result so far: 72.0
Subtracting 252 from 323 leaves us with 71.
Bring next digit (3) of the dividend behind the 71 and repeat the process: 713 / 126

Step 5:
The number 126 fits into 713 5 times, leaving a remainder of 83.
Put 5 as the next digit of the answer. 
Result so far: 725.0
If we subtract 630 from 713, we get 83.
Fetch the next digit (7) from the dividend, attach it to 83 and continue: 837 / 126

Advancing to step 6:
837 divided by 126 is 6 with a remainder of 81.
The next digit of our result is 6. 
Result so far: 7256.0
If we take 756 away from 837, we end up with 81.
Take the next digit (9) from the dividend and append it to 81, then repeat: 819 / 126

Going ahead to step 7:
If we divide 819 by 126, we get 6 and a remainder of 63.
Put 6 as the next digit of the answer. 
Result so far: 72566.0
The remainder is 63 after subtracting 756 from 819.
Bring next digit (7) of the dividend behind the 63 and repeat the process: 637 / 126

Going ahead to step 8:
126 can be fit into 637 5 times, resulting in a remainder of 7.
Write down 5 as next digit of the result. 
Result so far: 725665.0
Subtracting 630 from 637 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 9:
126 goes into 70 0 times with a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 725665.0
Subtracting 0 from 70 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 10:
126 can be fit into 700 5 times, resulting in a remainder of 70.
Record the quotient 5 as the next digit in the result. 
Result so far: 725665.05
Deduct 630 from 700 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 11:
700 divided by 126 is 5 with a remainder of 70.
Write down 5 as next digit of the result. 
Result so far: 725665.055
The remainder is 70 after subtracting 630 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

The final result is 725665.055 with a remainder of 0.007.